Sasakubo, Koshigaya, Saitama, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Sasakubo, Koshigaya, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (17th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 25 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 16th Aug - 17th Aug 2026
Sasakubo, Koshigaya, Saitama, Japan
4 AM16th Aug 2026
6 PM
3 AM17th Aug 2026
29AQI
21AQI
27AQI
21AQI
In the last 24 hours,
Sasakubo's AQI reached its highest point of 29 at 9 AM during the Day, while the lowest point, 21, was recorded at 11 PM during the Night between 16th Aug and 17th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Sasakubo, Koshigaya, Saitama, Japan
29°C26/33°C
32°C27/38°C
33°C29/39°C
34°C29/39°C
33°C28/39°C
30°C27/35°C
29°C25/36°C
29°C26/34°C
27°C24/31°C
27°C24/32°C
30°C24/37°C
32°C27/37°C
32°C28/37°C
32°C27/38°C
30°C25/35°C
25°C24/26°C
26°C22/31°C
27°C23/32°C
30°C26/34°C
31°C27/35°C
30°C27/36°C
30°C27/34°C
27°C25/31°C
24°C22/28°C
23°C22/25°C
26°C23/30°C
26°C24/29°C
27°C24/31°C
26°C24/30°C
13°C8/19°C
33AQI
27AQI
33AQI
27AQI
2026 Days Vs Air Quality
Sasakubo, Koshigaya, Saitama, Japan
88%
201
12%
28
Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2026, 88% of 229 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Sasakubo, Koshigaya, Saitama, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI (US)
19AQI (US)
16AQI (US)
22AQI (US)
43AQI (US)
14AQI (US)
37AQI (US)
37AQI (US)
15AQI (US)
37AQI (US)
33AQI (US)
22AQI (US)
44AQI (US)
15AQI (US)
33AQI (US)
48AQI (US)
48AQI (US)
29AQI (US)
44AQI (US)
34AQI (US)
20AQI (US)
16AQI (US)
39AQI (US)
42AQI (US)
45AQI (US)
25AQI (US)
40AQI (US)
20AQI (US)
20AQI (US)
39AQI (US)
40AQI (US)
39AQI (US)
26AQI (US)
23AQI (US)
41AQI (US)
62AQI (US)
52AQI (US)
12AQI (US)
15AQI (US)
33AQI (US)
43AQI (US)
56AQI (US)
26AQI (US)
40AQI (US)
59AQI (US)
71AQI (US)
39AQI (US)
20AQI (US)
35AQI (US)
30AQI (US)
29AQI (US)
44AQI (US)
43AQI (US)
43AQI (US)
44AQI (US)
23AQI (US)
12AQI (US)
34AQI (US)
40AQI (US)
36AQI (US)
60AQI (US)
42AQI (US)
49AQI (US)
55AQI (US)
50AQI (US)
43AQI (US)
34AQI (US)
45AQI (US)
57AQI (US)
57AQI (US)
64AQI (US)
36AQI (US)
45AQI (US)
55AQI (US)
48AQI (US)
49AQI (US)
51AQI (US)
41AQI (US)
28AQI (US)
53AQI (US)
49AQI (US)
50AQI (US)
47AQI (US)
58AQI (US)
28AQI (US)
23AQI (US)
32AQI (US)
54AQI (US)
55AQI (US)
21AQI (US)
22AQI (US)
34AQI (US)
47AQI (US)
46AQI (US)
38AQI (US)
28AQI (US)
35AQI (US)
23AQI (US)
32AQI (US)
47AQI (US)
42AQI (US)
30AQI (US)
34AQI (US)
38AQI (US)
37AQI (US)
36AQI (US)
35AQI (US)
31AQI (US)
32AQI (US)
33AQI (US)
38AQI (US)
47AQI (US)
39AQI (US)
32AQI (US)
46AQI (US)
51AQI (US)
50AQI (US)
40AQI (US)
40AQI (US)
38AQI (US)
49AQI (US)
50AQI (US)
53AQI (US)
30AQI (US)
22AQI (US)
30AQI (US)
30AQI (US)
26AQI (US)
27AQI (US)
30AQI (US)
28AQI (US)
36AQI (US)
30AQI (US)
33AQI (US)
36AQI (US)
86AQI (US)
69AQI (US)
54AQI (US)
49AQI (US)
62AQI (US)
59AQI (US)
62AQI (US)
54AQI (US)
58AQI (US)
47AQI (US)
39AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
27AQI (US)
29AQI (US)
28AQI (US)
25AQI (US)
23AQI (US)
22AQI (US)
20AQI (US)
21AQI (US)
20AQI (US)
23AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
30AQI (US)
49AQI (US)
17AQI (US)
21AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
23AQI (US)
20AQI (US)
19AQI (US)
22AQI (US)
22AQI (US)
27AQI (US)
29AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
22AQI (US)
17AQI (US)
37AQI (US)
23AQI (US)
29AQI (US)
27AQI (US)
25AQI (US)
22AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
30AQI (US)
30AQI (US)
29AQI (US)
43AQI (US)
44AQI (US)
24AQI (US)
23AQI (US)
28AQI (US)
43AQI (US)
61AQI (US)
49AQI (US)
33AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
28AQI (US)
34AQI (US)
31AQI (US)
43AQI (US)
52AQI (US)
40AQI (US)
9AQI (US)
15AQI (US)
21AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
27AQI (US)
25AQI (US)
31AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
31AQI (US)
37AQI (US)
46AQI (US)
37AQI (US)
41AQI (US)
25AQI (US)
31AQI (US)
26AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
October49AQI (US)
Lowest AQI (US) recorded in
September35AQI (US)
202440AQI (US)
Highest AQI (US) recorded in
April52AQI (US)
Lowest AQI (US) recorded in
August30AQI (US)
202345AQI (US)
Highest AQI (US) recorded in
July51AQI (US)
Lowest AQI (US) recorded in
August39AQI (US)
202243AQI (US)
Highest AQI (US) recorded in
June48AQI (US)
Lowest AQI (US) recorded in
August25AQI (US)
202140AQI (US)
Highest AQI (US) recorded in
January45AQI (US)
Lowest AQI (US) recorded in
April34AQI (US)
202039AQI (US)
Highest AQI (US) recorded in
August48AQI (US)
Lowest AQI (US) recorded in
September33AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Sasakubo's annual 2026 AQI (US) (35) shows an average percentage change of -15.4% (improved AQI (US)) compared to previous years: 2020 (39), 2021 (40), 2022 (43), 2023 (45), 2024 (40), 2025 (42).